TY  - BOOK
AU  - Szalai Alexander Ed.
AU  -  Petrella Riccardo Ed.
TI  - Cross-national comprative survey research:  Theory   
SN  - 0080209793
U1  - Sigma b4, L7 
PY  - 1977///
CY  - New York
PB  - Pergamon Press USA       
KW  - Social Science
N1  - International social science councial satnding committee on comprative research; European corrdination center for research and documentation in social sciences
ER  -